Engine Block & Cylinder Head VCI Bags 23" x 15" x 30" — 3 mil ARMOR EQ Defender

These 23" x 15" x 30" gusseted VCI bags are manufactured with ARMOR EQ Defender volatile corrosion inhibitor film technology for the protection of large ferrous and non-ferrous metal components during storage, interplant transit, and export shipments. The VCI chemistry releases corrosion-inhibiting molecules that form a protective molecular layer on metal surfaces without requiring oils, greases, rust preventatives, or desiccants. The gusseted format expands to a full 38" open width, accommodating engine blocks, cylinder heads, crankshafts, large castings, and similar industrial components.

Specs: 23" x 15" x 30" (Gusseted) | 3 mil | ARMOR EQ Defender VCI Film | 250/Roll | Non-Food

Applications

• Engine block and cylinder head long-term storage and interplant transfer


• Large cast iron and steel machined component corrosion protection


• Crankshaft, camshaft, and drivetrain component export packaging


• Metalworking die set and tooling storage between production runs


• In-process protection during manufacturing and assembly staging


• Domestic and overseas export shipment rust prevention

Features

• ARMOR EQ Defender VCI film — proven volatile corrosion inhibitor chemistry for ferrous and non-ferrous metals


• 23" x 15" gusset x 30" length — expands to 38" open width for large component coverage


• 3 mil gauge — heavy enough for machined metal parts with sharp or abrasive edges


• No oils, greases, or secondary rust preventatives needed — VCI technology provides complete protection


• Heat sealable — create a fully enclosed environment for maximum VCI concentration


• 250 bags per roll — suitable for high-throughput industrial packaging lines


• Compatible with both short-term in-process storage and long-term export applications

Material Notes

Manufactured using high-tech resin extrusion technology with integrated VCI additives. The film combines physical barrier protection (moisture, particulates) with active corrosion inhibition via volatile chemistry that diffuses within the sealed bag environment. The VCI compounds are compatible with ferrous metals (steel, cast iron) and non-ferrous metals (aluminum, copper alloys). The 3 mil gauge provides puncture resistance appropriate for machined components with typical edge profiles. All stated gauges are nominal.

Use Case Notes

For maximum VCI effectiveness, the bag should be heat sealed to create a closed environment that concentrates the inhibitor vapors around the metal surface. Sealed VCI bags can protect components for 12–24 months in typical indoor storage conditions. For export shipments or humid environments, double-bagging or adding a desiccant pack provides additional protection. Remove parts from the VCI bag only when ready for final assembly or use — the protective layer dissipates rapidly on exposure to open air.

Common Questions

Q: What metals does ARMOR EQ Defender VCI film protect?

A: The VCI chemistry is formulated for both ferrous metals (steel, cast iron) and non-ferrous metals (aluminum, copper, brass). Verify compatibility with specific alloys for high-value components or exotic metals before large-scale deployment.

Q: How long does VCI protection last in a sealed bag?

A: In a properly heat-sealed bag under normal indoor storage conditions, VCI protection typically lasts 12–24 months. Protection duration decreases if the bag is not fully sealed or if the component is stored in high-heat or high-humidity conditions.

Q: Does the VCI chemistry leave residue on metal parts?

A: ARMOR EQ Defender VCI film is formulated to be residue-free in most standard industrial applications. Parts should be inspected after removal from the bag — no degreasing or cleaning step is typically needed before use or painting.

Q: Can these bags be reused?

A: These bags are intended for single-use deployment. Reuse after opening reduces VCI concentration and compromises corrosion protection performance.

Why Buy

ARMOR EQ Defender VCI bags eliminate the labor cost and disposal overhead of oil-based rust prevention while delivering reliable corrosion protection for large machined metal components. The 23x15x30 gusseted format is purpose-sized for engine-class industrial parts. Sold in 250-count rolls for production-line use, these bags are the industrial standard for corrosion-sensitive storage and export operations.